Hi.
The instructions of OS 120 surpass III say to leave a vent line of fuel thank without being conected to anything to allow the tank to breath (I think this is due to the pump so it does not require muffler pressure). One vent for carb, another to refuel and this one to breath.
My question is won´t the tank loose fuel from this vent during some turn or other maneuver? How do you conect those lines to prevent this (I have a 14 oz Great planes)?

Thanks Daniel Maia